Title :
Parametric study of cavity backed spiral antennas
Author :
Mehrabani, A. ; Shafai, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
In this paper, an already designed low profile spiral antenna backed by a partially filled absorber cavity is numerically investigated. The cavity diameter and height were 144mm and 7mm, respectively. Herein, further attempts are made to make the cavity structure even smaller than the aforementioned values while retaining satisfactory CP characteristics. The effects of the cavity height and the width of the absorber ring on the CP performance of the proposed antenna are numerically studied.
Keywords :
spiral antennas; absorber ring; cavity backed spiral antennas; cavity structure; low profile spiral antenna; partially filled absorber cavity; size 144 mm; size 7 mm; Antennas; Cavity resonators; Computers; Electromagnetics; Gain; Parametric study; Spirals; Archimedean spiral antennas; Circular polarization; metallic cavity;
Conference_Titel :
Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on
Conference_Location :
Victoria, BC
DOI :
10.1109/ANTEM.2014.6887758
